Although the most intense part of Friday night’s thunderstorms did not last long, it was intense enough to topple trees and knock out electricity in the souther half of Butler County. Butler County Emergency Services fielded at least 50 phone calls between 4:30 p.m. and 6 p.m., according to its online records, including numerous reports of utility wires down, but few of those incidents were north of Butler. Wind and rain felled lines in Butler and Saxonburg as well as Clearfield, Summit, Middlesex, Jackson and Adams townships, resulting in scattered electrical outages. Two cars, one driven by a pizza delivery driver, were damaged by fallen trees. That car was hit on Hazel Avenue while the other car was hit on North Main Street Extension near State Route 422. However, the storm did not affect the Butler or Mars high school proms held Friday night. West Penn Power reported about 50 county customers still without power at 9 a.m. Saturday. Representatives for the utility could not be reached Saturday morning to determine the extent of its outages in the county. Residents of Butler and Penn Township, at least, were affected, and city firefighters confirmed the North Washington Street fire station had to rely on its backup generators for a few hours.